Re: [PATCH v5 20/21] arm: dts: k3-j7200: Remove background firewall on DDR

[Kumar, Udit]

On 8/28/2026 7:27 PM, Richard Genoud (TI) wrote:
> From: Prasanth Babu Mantena <p-mant...@ti.com>
> 
> With updated TIFS version tag v11.02.06, the background firewall
> for DDR firewalls are applied by the TIFS. This removes the
> dependency of applying firewalls through binman.
> 
> Remove background firewall on the whole DDR, as this
> background firewall is applied by the TIFS init for j7200
> and j784s4. Modify for j7200 only, as there are no firewalls applied
> for j784s4 from SPL.
> 

Please check for backward compatibility.
If this breaks, then changes should be protected with K3_LPM config option
 > Signed-off-by: Prasanth Babu Mantena <p-mant...@ti.com>
> ---
>  arch/arm/dts/k3-j7200-binman.dtsi | 14 --------------
>  1 file changed, 14 deletions(-)
> 
> diff --git a/arch/arm/dts/k3-j7200-binman.dtsi 
> b/arch/arm/dts/k3-j7200-binman.dtsi
> index b4e0ce8bfcf2..c2b86339d593 100644
> --- a/arch/arm/dts/k3-j7200-binman.dtsi
> +++ b/arch/arm/dts/k3-j7200-binman.dtsi
> @@ -294,13 +294,6 @@
>                                                       region = <2>;
>                                               };
>  
> -                                             firewall-4762-0 {
> -                                                     /* nb_slv2__mem0 
> Background Firewall - 0 */
> -                                                     insert-template = 
> <&firewall_bg_3>;
> -                                                     id = <4762>;
> -                                                     region = <0>;
> -                                             };
> -
>                                               firewall-4762-1 {
>                                                       /* nb_slv2__mem0 
> Foreground Firewall */
>                                                       insert-template = 
> <&firewall_armv8_optee_fg>;
> @@ -308,13 +301,6 @@
>                                                       region = <1>;
>                                               };
>  
> -                                             firewall-4763-0 {
> -                                                     /* nb_slv3__mem0 
> Background Firewall - 0 */
> -                                                     insert-template = 
> <&firewall_bg_3>;
> -                                                     id = <4763>;
> -                                                     region = <0>;
> -                                             };
> -
>                                               firewall-4763-1 {
>                                                       /* nb_slv3__mem0 
> Foreground Firewall */
>                                                       insert-template = 
> <&firewall_armv8_optee_fg>;